Support for bobbins or cops.



J. O. McKEAN.

SUPPORT FOR BOBBINS OR COPS.

APPLICATION FILED MAY 1. 1916.

1,229,491. PatentedJune 12,1917.

JOHN O. MGKEAN, OF WESTFIELD, MASSACHUSETTS, ASSIGNOR TO FOSTER MACHINECOMPANY, OF WESTFIELD, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

SUPPORT FOR BOBBINS R COPS. I

. l '0 all whom it may concern Be it known that I, JOHN O. MoKnAN, acitizen of the United States, residing at Westfield, in the county ofI-Iampden and State of Massachusetts, have invented new and usefulImprovements in Supports for Bobbins or Cops, of which the following isa specification.

My invention is a support for bobbins or cops during the process ofunwinding the same, so designed and arranged as to maintain frictionalbraking engagement with the bobbin throughout the unwinding process. Inthe drawings:

Figure 1 shows the standard for the support;

Fig. 2 is a plan view of Fig. 1;

Fig. 3 shows the movable element of the device;

Fig. 4 is a view of the support at right angles to the view in Fig. 8;and

Fig. 5 shows the complete assembly, in perspective, on an enlargedscale.

In the preparation of yarns and the like for use in the making oftextiles, it is necessary to unwind the yarn from bobbins, spools copsand the like and to re-wind it onto some other container. My inventionis a support or holder for the bobbin that is to be rewound, during there-winding operation. The re-winding is accomplished by attaching thefree end of the yarn upon the bobbin to be unwound to the cop, spool orbobbin upon which it is to be re-wound. The re-wind bobbin is thenrotated and the yarn drawn off the original bobbin. This is accomplishedat high speed, the yarn leading upward to the drawing bobbin or cop,and, due to this draft upon the thread the delivering cop or spool isunder some lifting strain, which tends to raise it, and, as in practiceneither the draft nor the resistance is uniform, the result is that thedelivering cop is continually lifted and dropped under these changes ofactuating force, continually varying or destroying the tension to thedetriment of good spooling.

My device consists essentially of a spring supported seat, to receiveand sustain the delivering cop and a guide spindle, upon which the copmay be mounted, and which operates to keep the cop always in line withthe support. Any lifting efi'ect upon the cop, whether caused byincreased draft or increased resistance, is neutralized as to anySpecification of Letters Patent.

Patented June 12, 1917.

Application filed. May 1, 1916. Serial No. 94,535.

evil effects, since the spring supported cradle upon which the surfaceof the delivering cop rests, instantly follows the slightest rise andmaintains at all times frictional engagement with the cop, graduallyreleasing the friction as the cop lifts and the gravity of the cop ismore or less overcome and gradually re-instating normal braking actionwhen the cop falls as the draft is reduced.

In the drawings the standard, a, for the support, 6, is shown mountedupon a base plate, a, which may be secured either to the floor or tosome part of the spooling machine as desired. I have shown it asarranged to be bolted to the floor by bolts, a Rising also from the baseplate is an upright member, a having a projection at its upper end whichis slotted, as at (i for a purpose to be later indicated. The support,I), is preferably of curved contour on its upper surface (see Fig. 4) toafford a good seat and braking surface to a cop of any size. Thesupport, I), carries upon its underside a hollow member, 7), having abore calculated to receive the standard, a, in telescoping fashion. (SeeFig. 3, in which the bore of b is indicated by dotted lines.) Betweenthe base plate, a, and the support, I), and surrounding the standard, a,and the member, 6', is interposed a helical spring, I-I, upon the upperend of which the support, I), is supported. Depending also from theunderside of b is a short guide rod 6 of a size suitable to enter theslot a in the upper end of a to prevent the support 6 from turning onits axis and to guide it in its rise and fall. Cooperating with thisguided support, 6, is a guided spindle, s, mounted at one end of apivoted lever, s, which is, in turn, pivoted upon the upper end of astandard, 8 suitably supported on the floor or secured to some part ofthe spooling machine. The pivoted lever s is so mounted that its uppersurface is above the top of the standard, 8 so that a balance weight, W,may be freely moved along the lever, s, from one end to the other, thusenabling the operator to control the weight pressing upon the support,either counterbalancing it in part by moving the weight to the side ofthe pivot opposite that upon which the cop is, or increasing the weightby adjusting the weight on the same side of the pivot with the cop.

The operation will be obvious from the above. The parts are assembled asclearly shown in the drawings. The bobbin or the like to be unwound isplaced upon the spindle, s, where it rotates freely, actuated by thedraft of the thread or yarn as it is drawn off. The under surface of thecop rests upon the support, 6, and the weight of the cop, plus or minuswhat may be added or counterweighted by the weight, W, as it may beadjusted, compresses the spring H. When the draft is sufiicient todisturb the balance of things the cop and the support, 6, rise slightly,the support always in contact with the surface of the cop,'the cop beingguided and maintained in proper relation to the support by the swingingspindle 3 upon which it is mounted.

I claim: .1. In a supporter for spools or the like, the combination ofavspool-sustaining support; a

spring sustaining said support and means engaging the spool to guide thespool in movements in a direction to and from the support and retain itin proper relation to the support while the spool is unwound.

2. In a supporter for spools or the like, the combination of a support;a spool receiving spindle, mounted upon one end of a pivotedbeam; thatbeam and a weight adjustable upon either side of the beam pivot toincrease or decrease the pressure of the spool upon the support.

Signed by me at Westfield, Mass, this 27th day of April, 1916.-

JOHN o. McKEAN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

